Helium is the most unreactive element of the periodic table.

True

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False

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Solution

The correct option is A True
Helium has highest ionisation potential among all elements, so He is the least reactive.

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Q. The most electronegative element in the periodic table is:

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Helium is the most unreactive element of the periodic table.

The correct option is A TrueHelium has highest ionisation potential among all elements, so He is the least reactive.

The correct option is A True
Helium has highest ionisation potential among all elements, so He is the least reactive.